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What's hanging off of the side of this long molecule that's formed by polymerizing nucleotides are - is this base unit.
在这条由多聚核苷酸,构成的长链分子,一侧悬挂着碱基单位
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Remember that this molecule, let's look at the blue one wouldn't be the same if I turned it upside down.
让我们记住,如果我把蓝色的,单链倒过来,那么这条链和原来不一样了
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This blue chain here goes from 5' carbon all along the chain and there's a 3' carbon left open at the bottom.
这条蓝色的链,从5'碳开始一直向下延伸,以3'碳做为链的末端
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If I wanted to link another nucleotide to this DNA chain what would I attach here on the bottom?
如果想把另一核苷酸连接到这条DNA链,我将会在DNA链末端添加什么
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It exists in a double stranded form where every strand is matched by its complement.
这种碱基配对存在于DNA双链中,每条单链都与其互补链,通过这个原则配对组合
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The result of this process if this replication went down the whole length of the DNA would be to form two identical, double stranded DNA molecules.
如果复制过程在整条链上持续进行的话,将生成两条完全一样的,双链DNA分子
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